Indicating mechanism for spring-motors



V. V. VEENSCHOTEN.

INDICATING MECHANISM FOR SPRING MOTORS.

APPLICATION FILED JULY 17, 1920.

1,400,644, Patented Dec. 20, 1921.

'- INVENTOR Y/M M 2f r 7 A tlarney 'naled in the plate VINCENT V. VIEENSCI-IOTEN, E ERIE, PENNSYLVANIA,

INDIGATIN l dECHAIlISl /I FOR SPRTNGJVLOTORS.

mo ern Application filed July 1?,

To all 207mm it may concern:

Be it known that Vmcnrrr V. l nrrt scrro'rnlv, a citizen of the United States, resi in at Erie, in the county of Erie and State of lennsylvania, have invented new and. useful improvements in Indicating lllechanism for Spring-llflotors, of which the following is specification.

This invention is designed for use with spring motors and operates to indicate the condition of the spring as to being wound or unwound. The device is particularly useful in connection with springs striated phonographs and is so illustrated in the drawings as followsz Figure 1 shows a section of a part of a phonograph case showing the spring motor in place.

Fig. 2 a plan view of a part of the spring motor with a part of the device mounted in relation thu'eto. 7

Fig. 3 an elevation of a cam wheel forma part of the device. ig. a plan view of the indicating plate. .L marks the phonograph case, 2 and 3 the motor frame which is mounted in the case, a the spring barrel, and 5 the spring. As usually constructed the spring is in sections. One end of the spring is connected to a shaft 6 and the other end of the spring is connected to the barrel 4 which is secured to the end wheel '4". The shaft 6 is jour- 3 and a gear 8 is tired on the shaft 6. The gear 8 is driven from a pinion 9 mounted on a shaft '10. A beveled gear 11 also mounted on the shaft meshes with a beveled gear 12. The beveled gear 12 is mounted on a crank shaft 13. The crank shaft 13 extends to without the case and the spring is re-wound through a crank 14-. The usual phonograph post 7 receives motion from the wheel 7 through a gearing (not shown) and is driven in the usual manner through the action of the spring Thus the shaft 6 forms the winding or driving means for the spring and the post 7* the device which is driven by the spring. it will be noted, therefore, with each winding up of the spring the gear 8 is rotated and as the spring runs down, and it is unwound the wheel 7 is rotated. If, therefore, the spring is wound completely the gear 8 will have a certain relation to the wheel 7. On the other hand if the spring is unwound the wheel 7 will have moved with relation to the wheel 8 a Specification of Letters Patent.

1320. Serial No. 397,197.

pie-determined. distance so that this difien ential relation between the gear 8 and wheel Z" will indicate at all times the condition of J n p a v t ne spring and it is onlynecessaiy to carry this difference to some readable indicating mechanism to effect the desired result. This,

is accomplished in a very simple and effective manner. A gear 7 is formed on the periphery of the wheel 7. Ashaft 15 is in eunted between the plates 2 and 3. A pinion 16 is fixed on the shaftlo and meshes with the gear 8. A similar. shaft .17 is 'by a post 2st on the frame. A lever is pivotally mounted by means of'a pin 25 on the gear 22, the lever extending through the gear. The end of this lever extends into a cam slot 21 arranged in the face of the gear 21. The lever is provided with a bell crank arm 27. This isiprovided with a ball 28 arranged the axis ofthe wheel 22 and this hall is arranged in a. socket in a link 29 forming a hall and socket joint with said linlr. The link 29 is connected by a pin 30 with a rock arm 31. The rock arm is pivotally mounted on a pin .32. It is provided at its upper end with an indicating plate 34E,v

the plate having the indicating characters Stop, Play and lVincWas indicated in Fig. These characters are displayed through ranged on the top of the case.

The cam slot 21 to an extent indicating the normal winding tension of the spring is such as to hold the rock lever 31 in. a vertical position and to display the word Play. The cam slot 21 has an inwardly extending portion 21 which will swing the lever 25 so as to rock the rock arm 31 to bring the word Vlind into the slot 86. 011 the other hand the opposite end of the slot 21' has an outwardly extending portion 21 which will swing the rock lever 25 so as to rock the arm 31 to a position to bring the word Stop into the opening 36, the idea being to indicate that the spring is Patented Dee. 2&1921,

an opening 36 in a plate 86 ar 7 winding mechanism for thoroughly wound and the winding should its'function in winding the spring will be normally stationary and in consequence the wheel 21 will be stationary. The lever 25, therefore, will traverse the cam slotv21 in what may be termed a reverse direction. As the spring is unwound it will have reached the end of the cam slot. When the spring is re-wound the gear 22 will be normally stationary or at least comparativelyso with relationto the movement of the gear 8 by which the spring is wound and the gear 21 will berotated as the spring is wound so as to advance the gear 21 and carry the cam slot 21 along the end of the lever 25 so as to locate the lever in the initial position in said slot which ordinarily would be in the extension 21. 7

If desired the cam slot may be in a dif- I prefer to ave the form shown as it is believed it will be less confusing to the average operator.

What I claim as new is 1. In an indicating mechanism for spring motors, the combination of a spring; a winding said spring; a wheel connected with the winding mechanism; means driven by the spring; a wheel connected with the drivenmeans; a lever mounted on one wheel; means on I the other wheel acting on the lever with a movement of either wheel; and indicating devices actuated by the lever,

2. In an indicating mechanism for spring motors, the combination of a spring; a winding mechanism for the spring; mechanism driven by the spring; a lever carried with one of said mechanisms and acted upon through a connection with the other of said mechanisms; and indicating devices actuated by the lever.-

3. In an indicating mechanism for spring motors, the combination of a spring; a winding mechanism for winding said spring;

mechanlsm driven bysaid spring; a cam connected with the winding mechanism;

means driven by the spring; a wheel connected with said driven means; a cam on one of saidwheels; and inc icating devices can ried by the other of said wheels actuated by said cam as said wheels move relatively.

an indicating mechanism for spring motors the combination of a s rin a rear 62 for winding said spring; gear driven by said spring, said gears being in axial alinement; two shafts arranged parallel to the axis of said gears, the gear on one shaft meshing with the driven gear, the gear on the other shaft meshing with the winding gear; worms on said shafts; worm gears meshing with said worms, said gears being in axial alinement; a lever pivotally mounted on one of said gears; a cam an ranged in the other of said gears and operating on said lever; and means for indicating the movement of the'lever.

6. In an indicating mechanism for spring motors, the combination of a spring; a gear 'for'winding said spring; a gear driven by said spring, said gears being in axial alinement; two shafts arranged parallel to the axis of said gears, the gear on one shaft meshing with the driven gear, and the gear onthe other shaft meshing with the winding gear; worms on said'shafts; worm gears meshing with said worms, said gears being in axial alinement; a lever pivotally mounted on one of said gears; a cam arranged in the other of said gears and operating on said lever; a bell crank arm on said lever'leading'to the axis of said worm gear; an indica ting device; and a universal connection to the bell crank at the axis for communicating the movement of the lever'to the indicating 7 device.

vnvonnr v. vnnnscnornn 

